US4399213AExpiredUtility

Silver halide photosensitive photographic material

76
Assignee: KONISHIROKU PHOTO INDPriority: Jan 9, 1978Filed: Oct 16, 1981Granted: Aug 16, 1983
Est. expiryJan 9, 1998(expired)· nominal 20-yr term from priority
G03C 1/385G03C 1/7614G03C 1/32Y10S430/151Y10S430/142
76
PatentIndex Score
14
Cited by
10
References
7
Claims

Abstract

A silver halide photosensitive material comprising a support, a silver halide photosensitive layer, and a protective layer formed on said support. The protective layer is essentially composed on a plurality of non-photosensitive hydrophilic colloidal layers at least one of which contains oil particles. The outermost layer of the hydrophilic colloidal layers contains a matting agent in the form of colloidal particles and has a thickness of not more than one fourth of the average size of the matting agent particles and wherein the density of the oil particles in said outermost layer does not exceed 0.2 by volume of the binder, and that of the oil particles in the protective layers other than the outermost layer is in the range of 0.1 to 0.8.

Claims

exact text as granted — not AI-modified
What we claim is: 
     
       1. A silver halide photosensitive material comprising a support, and a silver halide photosensitive layer and a protective layer formed on said support in this order, the protective layer being essentially composed of a plurality of non-photosensitive hydrophilic colloidal layers at least one of which contains oil particles, the outermost layer of the hydrophilic colloidal layers containing a matting agent in the form of colloidal particles and having a thickness not more than 1/4 times an average size of the matting agent particles and wherein the density of the oil particles in the outermost layer is the range not exceeding 0.2 by volume of the binder, and that of the oil particles in the protective layers other than the outermost layer is in the range of 0.1-0.8. 
     
     
       2. A silver halide photosensitive material according to claim 1, wherein said matting agent is polymethacrylate or silica and has an average particle size of 1 to 8μ. 
     
     
       3. A silver halide photosensitive material according to claim 1, wherein the outermost layer is not more than 1μ in thickness. 
     
     
       4. A silver halide photosensitive material according to claim 1, wherein the density of the oil particles in the outermost layer is not the highest among the oil particle densities of the other hydrophilic colloidal layer or layers. 
     
     
       5. A silver halide photosensitive material according to claim 1, wherein the oil particles in the outermost layer comprises a slipping agent as its principal component. 
     
     
       6. A silver halide photosensitive material according to claim 1, wherein at least one of the hydrophilic colloidal layers comprises an organic fluoro compound. 
     
     
       7. A silver halide photosensitive material according to claim 6, wherein said organic fluoro compound is contained in an amount of 0.1-500 mg per m 2  of the at least one layer.

Cited by (0)

No later patents cite this yet.

References (0)

No backward citations on record.